package com.agile.leetcode.array.length;

import java.util.HashSet;

public class Test extends HashSet {
    public static void main(String[] args) {
        Test test=new Test(10);
        test.add(1);
        test.add(2);
        test.add(1);
        for (Object o : test) {
            System.out.println(o);
        }
    }
    public Test(int i){
        super(i);
    }
}
